1. There is no such thing as a low safety factor in Vietnam, but it is true that there are many in wild one. As long as you take good care of your valuables, don&;t use your mobile phone and camera near the driveway, just carry your own bag, and don&;t worry about other aspects of safety, most people are still quite good.
2. According to your 6-day trip from Ho Chi Minh to Nha Trang, it is suggested that Ho Chi Minh arrange 1-2 days, mainly to visit the scenic spots, and 2 days for Da Da, which is worth playing slowly. If you know how to ride a motorcycle, you can rent a motorcycle to go to various scenic spots yourself. If you can&;t, it doesn&;t matter. Da Da is not big, you can stroll around the nearby scenic spots slowly, and it&;s not expensive to take a taxi to Vietnam. Finally, Nha Trang arranged a two-day relaxing holiday. Because Ho Chi Minh is in the south and Nha Trang is in the middle, it is not too close. If you want to focus on vacation, you can focus on Nha Trang and stay there for a few more days.